class_name  StateBase
extends Node

var state_machine: StateMachine

##进入状态
func enter() -> void:
	pass

##退出状态
func exit() -> void:
	pass

##渲染帧触发
func process_update(_delta: float) -> void:
	pass

##物理帧触发
func physics_process_update(_delta: float) -> void:
	pass
